| LIU Xiaoshou,ZHANG Zhinan,HUANG Yong. 2005. Abundance and biomass of meiobenthos in the spawning ground of anchovy (Engraulis japanicus) in the southern Huanghai Sea. Acta Oceanologica Sinica, (3):94－104 |
| Abundance and biomass of meiobenthos in the spawning ground of anchovy (Engraulis japanicus) in the southern Huanghai Sea |
| Abundance and biomass of meiobenthos in the spawning ground of anchovy (Engraulis japanicus) in the southern Huanghai Sea |
| Received:December 29, 2004 Revised:March 21, 2005 |
| DOI： |
| Key words:meiofauna free living marine nematodes benthic copepods abundance biomass southern Huanghai Sea |
| 中文关键词: meiofauna free living marine nematodes benthic copepods abundance biomass southern Huanghai Sea |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LIU Xiaoshou | College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China | | | ZHANG Zhinan | College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China | znzhang@ouc.edu.cn | | HUANG Yong | College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
Agricultural College, Liaocheng University, Liaocheng 232000, China | |
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| Abstract: |
| Sea was selected. Undisturbed sediments were taken from sampling stations during the cruise in June 2003. The average abundance of meiofauna is (1 584±686) ind./10cm2, with corresponding biomass (dwt) of(1 086±425) μg/10cm2. The pattem of abundance of meiofauna is similar to the pattern ofbiomass. There are 65.88% meiofauna in 0~2 cm sediments, 27.66% in 2~5 cm sediments and 6.47% in 5~8 cm sediments.The Spearman correlation analysis between meiofauna and environmental factors shows that abundance of meiofauna, free living marine nematodes, benthic copepods has significant positive correlations with Chl-a. And the abundance of copepods has significant positive correlations with several factors such as Chl-a, Pha-a, Chl-a plus Pha-a and organic matter. A total of 18 meiofauna groups are identified. Nematode is the most dominant group, average abundance (1 404±670) ind/10cm2, accounting for 88.65%, and the following groups are also important:benthic copepods (5.48%), kinorhyncha (1.26%), polychaeta (1.07%). By biomass, dominant groups are nematodes (51.72%), polychaeta (21.84%), copepods (14.87%), ostracoda (4.92%), kinorhyncha (3.67%). A total of 90 species of nematodes are identified. The species composition of nematodes is listed based on selected two stations 7794 (coastal area) and 10694(cold water mass in deep waters). |
| 中文摘要: |
| Sea was selected. Undisturbed sediments were taken from sampling stations during the cruise in June 2003. The average abundance of meiofauna is (1 584±686) ind./10cm2, with corresponding biomass (dwt) of(1 086±425) μg/10cm2. The pattem of abundance of meiofauna is similar to the pattern ofbiomass. There are 65.88% meiofauna in 0~2 cm sediments, 27.66% in 2~5 cm sediments and 6.47% in 5~8 cm sediments.The Spearman correlation analysis between meiofauna and environmental factors shows that abundance of meiofauna, free living marine nematodes, benthic copepods has significant positive correlations with Chl-a. And the abundance of copepods has significant positive correlations with several factors such as Chl-a, Pha-a, Chl-a plus Pha-a and organic matter. A total of 18 meiofauna groups are identified. Nematode is the most dominant group, average abundance (1 404±670) ind/10cm2, accounting for 88.65%, and the following groups are also important:benthic copepods (5.48%), kinorhyncha (1.26%), polychaeta (1.07%). By biomass, dominant groups are nematodes (51.72%), polychaeta (21.84%), copepods (14.87%), ostracoda (4.92%), kinorhyncha (3.67%). A total of 90 species of nematodes are identified. The species composition of nematodes is listed based on selected two stations 7794 (coastal area) and 10694(cold water mass in deep waters). |
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